div,
dl,
dt,
dd,
ul,
ol,
li,
h1,
h2,
h3,
h4,
h5,
h6,
pre,
form,
fieldset,
input,
textarea,
blockquote,
p,
body {
    padding: 0;
    margin: 0;
}

.f-l {
    float: left;
}

.f-r {
    float: right;
}

.cl-fl {
    clear: both;
}

ul,
ol {
    list-style: none;
}

img {
    display: block;
    width: 100%;
}

input, textarea, select {
    background-color: transparent;
    border: none;
    outline: none;
    -webkit-appearance: none
}

* {
    -webkit-tap-highlight-color: transparent;
}

a,
a:active,
a:visited,
a:hover,
a:focus {
    text-decoration: none;
}

html {
    font-size: 20px;
    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif, "微软雅黑";
}

.main {
    width: 16rem;
    margin-right: auto;
    margin-left: auto;
    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif, "微软雅黑";
}
